Ekonomiczna oceana dwuzawodowości w Polsce.
Edition: [Wyd. 1.]
Publisher: [Państwowe Wydawn. Naukowe]; Państwowe Wydawn. Naukowe
Published: 1973
Place of publication: Warszawa
Language: pol
Number of pages: 155
Subjects: Supplementary employment -- Poland
Notes: Bibliography : p. 144-[151]
Summaries in English and Russian.